Aliases: N/A
Variants: N/A

Classification: Malware
Category: Computer Virus

Status: Active & Spreading
Spreading: Slow
Geographical info: Asia, North and South America, and some parts of Europe and Australia
Removal: Easy
Platform: W32
Discovered: 03 Jun 2009
Damage: Low

Characteristics: W32.Sfc!mod is a general detection for duplicates of “%System%\sfc.dll” that have been changed by a threat.

More details about W32.Sfc!mod

The W32.Sfc!mod program is an application designed to proliferate via computer networks. Constructed to be able to independently multiply, this type of worm can invade operating systems in various methods. It can range from manual launching of the user to the totally involuntary distribution. Unsuspecting user can download this software from the internet without having the full information of what the application is. Operating systems with security leaks are also targeted by this threat to be able to invade and infect a certain pc unit. Downloading and installing a freeware or a shareware is one method of acquiring this threat. The W32.Sfc!mod program can bundle itself to certain programs and mask itself as a genuine part of the software. This is also a way to avoid detection of security programs and firewalls. A malicious program like this can be introduced into the system through the utilization of peer-to-peer software. It can attach itself to files being shared within the network.

The W32.Sfc!mod program can also automatically be downloaded when a user goes to dubious web sites. A user can unintentionally inject this to his system when he opens email attachments from unknown sender or has clicked on a link that will lead to an infected website. Once the pc is infected by this worm, there will be effects that the user can immediately notice. There will be a PC slowdown wherein the unit will take a longer time to restart or the system will not respond immediately to whatever the user will try to do. This worm can interfere with the Internet settings the user established. It can alter the user’s default home page to undesirable web sites and might even append new shortcuts on the desktop of the PC. This worm can gain full control of the user’s mailbox to create spam emails.